background: doogh is a popular dairy beverage in iran which its main ingredient is yogurt. the aim of this study was evaluation of bacterial and fungal contamination of this product marketed in lorestan province, west of iran. methods: a total of 200 doogh samples consisted of 150 commercial samples, including five different brands and also 50 homemade samples were purchased randomly from marke...

bacteria usually cause disease in the gastrointestinal tract by colonization and growth in the gastrointestinal tract, where the micro organisms may invade the tissues of host or secretion of an exotoxin that is performed in food and then ingested by the host, examples of second group include: staphylococcal, bacillus cereus, clostridial (c.botulinum and c.perfringens type a) toxin. in this stu...

chitosan is a polysaccharide derived from chitin by n-deacetilation, which has the property of gel formation. the objective was to develop a chocolate milk beverage using modified (hydrogel) chitosan as a thickening agent, and to make a sensory and rheological evaluation of this beverage. in the sensory evaluation an acceptability and comparative test with 50 local consumers was carried out, wi...

background: pseudomonas spp. are of important food spoiling bacteria. they present around the world and are isolated from diverse sources. the main objective of this survey was to detect pseudomonas spp. in fresh chicken and fish obtained from markets of assiut city, egypt.  methods: in this cross-sectional survey, 50 samples of fresh raw chicken and 50 samples of fresh raw fish meat were rando...

aflatoxin m1 (afm1), a carcinogenic substance is found in milk and dairy products. the effect of season and type of dairy products on afmi level in northern iran was investigated in this study.three hundred samples (each season 75 samples) including raw and pasteurized milk, yoghurt, cheese, and cream samples were collected from three distinct milk producing farms. the samples were subjected to...

background & aim:   changes in lifestyle, decrease in physical exercise along with incidence of obesity, hypertension and cardiovascular diseases indicate a need for low calorie formulations. the sweetness of stevia, a natural sweetener, is estimated to be 300 times as much as that of sugar. extraction of stevia leaves is considered a promoter of calorie balance and a beneficial part of a h...

background: antioxidant activities of plant extracts are being studied to increase the shelf life of fish products. some plants such as urtica dioica l. (nettle) can be a good source of antioxidants. the objective of this study was to evaluate the effects of hydroalcoholic and water extracts of nettle leaf on the chemical properties of superchilled minced meat of the common kilka fish (clupeone...